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Finding the Fourth Proportional to 79,329.78, 118,990.28 and 26,014.97

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Solution

The fourth proportional to 79,329.78, 118,990.28 and 26,014.97 is: 39,021.02

Step by Step Solution

  1. Step 1: Write the proportion equation
    79,329.78 : 118,990.28 = 26,014.97 : x
  2. Step 2: Convert to fraction form
    79,329.78/118,990.28 = 26,014.97/x
  3. Step 3: Cross multiply
    79,329.78x = 118,990.28 × 26,014.97
  4. Step 4: Simplify right side
    79,329.78x = 3,095,528,927.00
  5. Step 5: Solve for x
    x = 3,095,528,927.00/79,329.78
  6. Step 6: Final answer
    x = 39,021.02

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.